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TI-2018-07997 Aliases CVE-2018-11236GHSA-pgv4-4294-ccrq

stdlib/canonicalize.c in the GNU C Library (aka glibc or libc6) 2.27 and earlier, when…

Priority MEDIUM 52CWE-190Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Partial Red Hat: 10 fixed, 2 without a fix

Attack profile from CVSS 3.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-190 and the CVSS impact.

Summary

stdlib/canonicalize.c in the GNU C Library (aka glibc or libc6) 2.27 and earlier, when processing very long pathname arguments to the realpath function, could encounter an integer overflow on 32-bit architectures, leading to a stack-based buffer overflow and, potentially, arbitrary code execution.

Why it matters now

EPSS 0.0692 94th percentileScored 2026-11-07
Fix Partial Red Hat: 1 advisoryRed Hat: 10 fixed, 2 without a fix

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 12

CPEVersionsRoleVendor
cpe:2.3:a:gnu:glibc:*:*:*:*:*:*:*:*up to 2.27VulnerableGNU
cpe:2.3:a:redhat:virtualization_host:4.0:*:*:*:*:*:*:*4.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
cpe:2.3:a:oracle:communications_session_border_controller:8.0.0:*:*:*:*:*:*:*8.0.0VulnerableOracle
cpe:2.3:a:oracle:communications_session_border_controller:8.1.0:*:*:*:*:*:*:*8.1.0VulnerableOracle
cpe:2.3:a:oracle:communications_session_border_controller:8.2.0:*:*:*:*:*:*:*8.2.0VulnerableOracle
cpe:2.3:a:oracle:enterprise_communications_broker:3.0.0:*:*:*:*:*:*:*3.0.0VulnerableOracle
cpe:2.3:a:oracle:enterprise_communications_broker:3.1.0:*:*:*:*:*:*:*3.1.0VulnerableOracle
  • cpe:2.3:a:gnu:glibc:*:*:*:*:*:*:*:* Versions up to 2.27 Vulnerable ·GNU
  • cpe:2.3:a:redhat:virtualization_host:4.0:*:*:*:*:*:*:* Versions 4.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
  • cpe:2.3:a:oracle:communications_session_border_controller:8.0.0:*:*:*:*:*:*:* Versions 8.0.0 Vulnerable ·Oracle
  • cpe:2.3:a:oracle:communications_session_border_controller:8.1.0:*:*:*:*:*:*:* Versions 8.1.0 Vulnerable ·Oracle
  • cpe:2.3:a:oracle:communications_session_border_controller:8.2.0:*:*:*:*:*:*:* Versions 8.2.0 Vulnerable ·Oracle
  • cpe:2.3:a:oracle:enterprise_communications_broker:3.0.0:*:*:*:*:*:*:* Versions 3.0.0 Vulnerable ·Oracle
  • cpe:2.3:a:oracle:enterprise_communications_broker:3.1.0:*:*:*:*:*:*:* Versions 3.1.0 Vulnerable ·Oracle
Show 2 more CPE
CPEVersionsRoleVendor
cpe:2.3:a:netapp:data_ontap_edge:-:*:*:*:*:*:*:*not specified by NVDVulnerableNetApp
cpe:2.3:a:netapp:element_software_management:-:*:*:*:*:*:*:*not specified by NVDVulnerableNetApp
  • cpe:2.3:a:netapp:data_ontap_edge:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
  • cpe:2.3:a:netapp:element_software_management:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp

Remediation

Red Hat 1 advisory

  • RHSA-2018:3092 Released 2018-10-30 · Red Hat rating Moderate
    glibc security, bug fix, and enhancement update
    • Red Hat Enterprise Linux Client (v. 7) glibc-2.17-260.el7, glibc-common-2.17-260.el7, glibc-devel-2.17-260.el7 +3
    • Red Hat Enterprise Linux Client Optional (v. 7) glibc-static-2.17-260.el7
    • Red Hat Enterprise Linux ComputeNode (v. 7) glibc-2.17-260.el7, glibc-common-2.17-260.el7, glibc-devel-2.17-260.el7 +3
    • Red Hat Enterprise Linux ComputeNode Optional (v. 7) glibc-static-2.17-260.el7
    • Red Hat Enterprise Linux Server (v. 7) glibc-2.17-260.el7, glibc-2.17-260.el7.ppc, glibc-common-2.17-260.el7 +5
    • Red Hat Enterprise Linux Server Optional (v. 7) glibc-static-2.17-260.el7, glibc-static-2.17-260.el7.ppc
    • Red Hat Enterprise Linux Workstation (v. 7) glibc-2.17-260.el7, glibc-common-2.17-260.el7, glibc-devel-2.17-260.el7 +3
    • Red Hat Enterprise Linux Workstation Optional (v. 7) glibc-static-2.17-260.el7
    • Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) glibc-2.17-260.el7, glibc-common-2.17-260.el7, glibc-devel-2.17-260.el7 +3
    • Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) glibc-static-2.17-260.el7

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 5AffectedNo fix planned: Will not fix
Red Hat Enterprise Linux 6AffectedNo fix planned: Will not fix
Red Hat Enterprise Linux Client (v. 7)Fixed RHSA-2018:3092
Red Hat Enterprise Linux Client Optional (v. 7)Fixed RHSA-2018:3092
Red Hat Enterprise Linux ComputeNode (v. 7)Fixed RHSA-2018:3092
Red Hat Enterprise Linux ComputeNode Optional (v. 7)Fixed RHSA-2018:3092
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2018:3092
Red Hat Enterprise Linux Server Optional (v. 7)Fixed RHSA-2018:3092
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2018:3092
Red Hat Enterprise Linux Workstation Optional (v. 7)Fixed RHSA-2018:3092
Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7)Fixed RHSA-2018:3092
Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7)Fixed RHSA-2018:3092
Not affected: 4 products
  • Red Hat Enterprise Linux 5
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 8

Timeline

  1. 2026-10-02 Threatist record created from CVE-2018-11236
  2. 2026-10-03 Alias added: GHSA-pgv4-4294-ccrq

References

Patch 2

Advisory 4

Other 2

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences